ZTEC™- WB Polyethersulfone Membrane Cartridge Filters

Pleated Polyethersulfone (PES) Membrane for Critical Filtration in Wine and Beer


 ZTEC WB cartridge filters utilize a special polyethersulfone membrane to provide consistent removal of spoilage organisms and inorganic particulate. The product offers excellent retention efficiency and extended on-stream life making it an ideal filter for the clarification of beer and wine.

The PES membrane, available with either 0.65 or 0.45 μm pore sizes, is designed to meet and surpass the filtration criteria necessary to maintain product quality and characteristics. Produced in an ISO Class 7 cleanroom, the cartridges are integrity tested during production to assure performance and consistency.

Filter Features– Benefits


  • Manufactured in an ISO Class 7 Cleanroom Environment
  • 100% flushed with 18MΩ water and integrity tested
    Low adsorption of protein, color and flavor components
  • All materials are FDA listed for food and beverage contact
  • Repeatably Steamable/Sanitizable
    High log reduction values for spoilage organisms
  • High retention (LVR>7) of yeast and other spoilage organisms
  • Pore size, lot and serial number are stamped on each filter element for identification and traceability


Typical Applications

White Wine • Red Wine • Beer • Sparkling Wine • Wine/Malt Coolers • Champagne • Distilled Spirits

Filter Specifications


Asymmetric Polyethersulfone membrane


Inner core, end caps, cage:





Support layers:



Spunbonded Polypropylene


Gaskets/O-Rings options: Buna-N, EPDM, Silicone, Viton, Teflon Encapsulated Viton (O-Rings only)
Micron ratings:


0.2 μm, 0.45 μm, 0.65 μm


Dimensions and Operating Parameters

P (DOE), P2 (226/flat), P3 (222/flat), M1 (3/4’’ male NPT), M2 (1’’ male NPT)


Nominal lengths:


9.76″ 10″ 20″ 30″ 40″
24.7, 25.4, 50.8, 76.2, 101.6 cm


Outside diameter:


6.9 cm


Inside diameter:


2.54 cm


Surface Area


7.5 ft2 . (0.7 m 2 ) per 10 inch element


Maximum operating temperature:




Differential pressure:

80 psid @ 70°F (5.5 bar @ 21°C)

40 psid @ 176°F (2.8 bar @ 80°C)



Performance Specifications

Hot DI Water

Filter cartridge will withstand temperatures of 185°F (985°C) for up to 30 consecutive minutes.


Compatible with most common chemical cleaning, sanitizing and sterilizing agents and with pH range from 1–14. Consult factory for specific compatibility information.


Cartridges may be steamed or autoclaved for at least 50 thirty minute cycles @ 275°F (135°C).

Typical Bacterial Retention Performance

0.2μm: LRV for B diminuta 8  
0.45μm: LRV for S. marcescens11 LRV for L. brevis 10  
0.65μm: LRV for S. cerevisiae10 LRV for L. brevis 7  

Integrity Test Specifications

Minimum Bubble Point values and maximum Diffusive Air Flow (per 10-inch cartridge) values for ZTEC-B filters wet with water:

Pore Size Bubble Point Diffusive Air Flow
0.2 μm: 38psig (2.6 bar) 35cc/min @ 30psig (2.1 bar)
0.45 μm: 25psig (1.7 bar) 35cc/min @ 20psig (1.4 bar)
0.65 μm: 18psig (1.2 bar) 35cc/min @ 15psig (1.0 bar)

FDA Listed Materials

All materials comply with FDA title 21 of the Code ofFederal Regulations Sections 174.5, as applicable for foodand beverage contact.